- Compatibility : The BB Bottom Bracket Chain Stabilizer is designed for chainrings with 30 to 40 teeth, making it a versatile choice for various bike applications. - Premium Build Quality : Crafted from high-strength aluminum alloy, this mountain bike chain guide has undergone heat treatment and CNC machining. Its lightweight design and superior craftsmanship guarantee both durability and long-lasting performance. - Key Functions : Effectively prevents chain drops and skips, specifically for single chainrings. Installation requires removing the bottom bracket and cranks, ensuring a secure fit. - Important Note : This product is compatible with threaded BB bottom brackets only; press-fit types are not supported. Use Cases : 1. Mountain Biking : Ideal for tackling rugged trails where chain stability is critical for optimal performance and safety. 2. Cycling on Mixed Terrain : Perfect for riders who switch between road and off-road cycling, providing confidence that the chain will stay in place. 3. Competitive Racing : Essential for cyclists looking to enhance their bike’s performance, minimizing the risk of mechanical issues during races.